A barring notice is a tool that property owners and/or persons lawfully entitled to possession of property (and their agents whom they have approved to serve in such a capacity) may use to restrict an individual who is not lawfully present on their private property to ensure safety at the premises.  If individuals violate a barring notice by appearing on the property after having received notice that they are not permitted on the property, they may face arrest and/or prosecution for unlawful entry on the premises.